You can download best freeware soft here!

Optimize and convert your pictures and photos JPG, JPEG in smaller JPG files (up to 10-20%) lossless! Full compatible with original JPEG format. High compression ratio — usually better than your programs / photo camera or smartphone. It uses program «jpegtran.exe» from MozJPEG. Batch processing of files (drag-n-drop). Reduce the size of your image files in one click without quality loss! Program optimizes your file to new one with «_optimized» name ending (source file will remain intact).